Eight PCB revisions for a tiny wireless fingerprint key
Notes from building immurok: a wrong MCU choice, a sensor swap, a tamper switch that only worked while powered, and a long fight to get standby current down to 40 uA.
Read more →Blog
Engineering notes, product updates, and security deep-dives from the immurok team.
Why desktop fingerprint authentication is still awkward on Mac and Linux
Touch ID is excellent when it's built into the machine or keyboard. Everywhere else — Mac mini, Mac Studio, clamshell MacBooks, external keyboards, Linux desktops — desktop biometrics are still awkward. immurok is a small wireless fingerprint key for those setups, and on Linux it goes through PAM, not a stored password.
Read more →The immurok security model
A fingerprint key is only as good as the trust it can prove. Here's how immurok keeps your biometrics on the device, authenticates every touch, and refuses to phone home — ECDH pairing, HMAC-signed events, and signed firmware, end to end.
Read more →A fingerprint gate for your AI coding agent
Claude Code, Cursor, Codex, Aider — they all want to run sudo, push to git, or read API keys on your behalf. Here's how immurok turns one fingerprint touch into the human in the loop.
Read more →Why we're building immurok
Millions of developers use desktop Macs and Linux machines without any biometric auth. We're building a tiny wireless fingerprint key to fix that.
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